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-rw-r--r--src/water_cmd.cpp26
1 files changed, 17 insertions, 9 deletions
diff --git a/src/water_cmd.cpp b/src/water_cmd.cpp
index 2e381e3eb..387cfe6f1 100644
--- a/src/water_cmd.cpp
+++ b/src/water_cmd.cpp
@@ -31,20 +31,21 @@
#include "newgrf_canal.h"
#include "misc/autoptr.hpp"
+/** Array for the shore sprites */
static const SpriteID _water_shore_sprites[] = {
0,
- SPR_SHORE_TILEH_1,
- SPR_SHORE_TILEH_2,
- SPR_SHORE_TILEH_3,
- SPR_SHORE_TILEH_4,
+ SPR_SHORE_TILEH_1, // SLOPE_W
+ SPR_SHORE_TILEH_2, // SLOPE_S
+ SPR_SHORE_TILEH_3, // SLOPE_SW
+ SPR_SHORE_TILEH_4, // SLOPE_E
0,
- SPR_SHORE_TILEH_6,
+ SPR_SHORE_TILEH_6, // SLOPE_SE
0,
- SPR_SHORE_TILEH_8,
- SPR_SHORE_TILEH_9,
+ SPR_SHORE_TILEH_8, // SLOPE_N
+ SPR_SHORE_TILEH_9, // SLOPE_NW
0,
0,
- SPR_SHORE_TILEH_12,
+ SPR_SHORE_TILEH_12, // SLOPE_NE
0,
0
};
@@ -708,7 +709,12 @@ static void FloodVehicle(Vehicle *v)
}
}
-/** called from tunnelbridge_cmd, and by TileLoop_Industry() */
+/**
+ * Let a water tile floods its diagonal adjoining tiles
+ * called from tunnelbridge_cmd, and by TileLoop_Industry()
+ *
+ * @param tile the water/shore tile that floods
+ */
void TileLoop_Water(TileIndex tile)
{
static const TileIndexDiffC _tile_loop_offs_array[][5] = {
@@ -722,6 +728,7 @@ void TileLoop_Water(TileIndex tile)
/* Ensure sea-level canals and buoys on canal borders do not flood */
if ((IsTileType(tile, MP_WATER) || IsBuoyTile(tile)) && !IsTileOwner(tile, OWNER_WATER)) return;
+ /* floods in all four diagonal directions with the exception of the edges */
if (IS_INT_INSIDE(TileX(tile), 1, MapSizeX() - 3 + 1) &&
IS_INT_INSIDE(TileY(tile), 1, MapSizeY() - 3 + 1)) {
uint i;
@@ -730,6 +737,7 @@ void TileLoop_Water(TileIndex tile)
TileLoopWaterHelper(tile, _tile_loop_offs_array[i]);
}
}
+
/* _current_player can be changed by TileLoopWaterHelper.. reset it back here */
_current_player = OWNER_NONE;